A new mod for Grand Theft Auto IV, titled GTA4 RTX Remix, has been made available for free download. Created by modder Xoxor4d, it enhances the 2008 game's visuals with path-traced lighting using Nvidia's RTX Remix technology. The mod focuses on realistic light interactions without altering textures or geometry.
Mod Overview
Grand Theft Auto IV, released in 2008 for Xbox 360, PlayStation 3, and later PC, has received a visual upgrade through the GTA4 RTX Remix mod. This free tool integrates Nvidia's RTX Remix to implement path tracing, allowing light sources such as headlights and the sun to interact more naturally with the game's environments and objects. The result produces effects that can appear near-photorealistic in certain scenes, as demonstrated in comparison videos.
Release and Installation
The mod was initially accessible only to subscribers of the creator's Patreon page for several months while undergoing testing. It became publicly available last week via Xoxor4d's GitHub repository, complete with installation instructions. Users are advised to pair it with the popular Fusion Fix mod for optimal performance on PC. While compatible with modern hardware, it may cause frame rate drops on older systems unless DLSS is enabled.
Background and Impact
The original PC port of Grand Theft Auto IV faced criticism for technical issues upon release, but subsequent official updates and community efforts have made it stable and playable, including on devices like the Steam Deck. GTA4 RTX Remix highlights how advanced lighting techniques can revitalize older titles without extensive asset overhauls, offering fans a refreshed way to experience the open-world crime game in 2025.